Device for punching or similarly treating continuously running webs



NOV. 10, 1931. p. GANGLER 1,831,167

DEVICE FOR PUNCHING OR SIMILARLY TREATING CONTINUOUSLY RUNNING WEBS Filed March 8. 1929 2 Sheets-Sheet l Pad Gan ea" v IN'VEINTOR;

NOV. 10, 1931. GANGLER 1,831,167

DEVICE FOR PUNCHING OR SIMILARLY TREATING CONTINUOUSLY RUNNING WEBS Filed March a. 1929 2 Sheets-Sheet 2 Attorney.

Patented Nov. 10, 1931 UNITED STATES PATENT OFFICE,

- PAUL GANGBER, OI ESLIRGEN', GERMANY, ASSIGNOR TO THE FIRM FR. HESSEB. MA-

SCHINENFABRIK-AKTEKGESELLSGHAIT, OF STUTTGART-CANNSTATT, GERMANY DEVIOE FOB PUNCIBTI NG 02B. BIMILARLY TBEATIN G GON'IINUOUSLY RUNNING WEBS Application fled 8, 1929, Seria1 No. 345,334, and in Germany April 12; 1928.

the said stem The invention relates to improvements in' devices for cutting, punching,stamp1ng, em-

ssing and similarly treating continuous webs of paper or similar materials.

As compared with known devices of this kind, the novel feature of the invention consists essentially in the fact that the die-holder consists of a slide adapted to be reciprocated in the direction of the feed of the web and that the stamp or punch holder consists of a slide guided at right angles to the first slide, or punch slide being-adapted to be revolve and im arting, due to its vertical guiding device, t e suitable reciprocating motion to the die slide, for the purpose of driving both slides commonly and in unison and in such a way that the die slide attains the same speed as the web in the lowest position of the punch die. The improved device thus combines with a simple and reliable construction the advantage that, for punching and embossing continuously running webs without interruption of the feed, flat or platelike punching and embossing members may be employed instead of the not so useful or effective punching and embossing cylinders used up to now for treating continuously running webs.

An embodiment of the invention is illustrated in the accompanying drawings by way of example and as applied to a machine for punching, printing and providing with transof so-called window in section, and viewed from a real parent areas paper webs for the manufacture letter envelopes. In the drawings is Fig. 1, an elevation ofv such a machine fitted with the improved punching device, in a more dia rammatic representation, 2, a side-elevation of the improved punc ing device on an enlargjga d'scale, and

Fig. 3, a front elevation of the right-hand side in Fig. 2.

Referring to Fi 1 of the drawings, it will be seen that a we of paper B is drawn oif R and in a continuous operation punched,printed and provided with the above mentioned transparent windows, in order to manufacture window envelopes from the finished paper web; The drivetakes place ig. 2, partly by means of the pulley 17 keyed on the shaft of a sultable electric motor 18 through a belt 19 and the pulley 20 mounted on a shaft'2l, which drives the first motion shaft machine by' means of the worm wheels 22 and 23. This shaft 1 drives through a worm wheel 24 the feed rollers 25 and 26, which ull the paper web B with continuous speed 0 the reel R. The web B is continuously fed forward first under the punching device S, then throughthe printing device D driven from the shaft 1 by the worm wheel '27, and then 1 of the through the window applying device F, which is driven from the shaft'l by means of the worm wheel 28. The window applying device applies to those places of the paper web at which the windows or transparent areas are to appear at the finished envelopes, a suitable varnish capable of rendering those places transparent, by means of a revolvin segment 29, to which the-varnish contained in the tank 30 is applied by rollers 31 and 32 and which cooperates with a counter roller 33. The web of paper now passes between this roller 33 and a roller '34 over a roller 35 to a suitable drying apparatus in which the varnish applied to the paper is hardened.

The punching device S consists of a horizontal slide 9, adapted to slide with slide rods 10 fixed in its eyes 9' at both sides'in sleeves 12 of the frame 11. On rods 8 mounted on the slide 9 there is adapted to be vertically reciprocated a second slide 7 guided by bushes 7 at bothits sides upon said rods 8. The slide 7 carries at its underside the desired punches 15 or other suitable tools adapted for the special purposes of the device, while the dies correspondmg 16 are mounted on its upper side of the horizontal slide 9.

The drive of the punching device takes place by means of a worm wheel 2 keyed on the shaft 1, which by means of a worm :wheel 3 turns a bolt 4 journaled in the frame '11. The bolt 4 rotates by means of the spur wheels 5 and 14 a shaft 13 journaled in the frame 11 which in its turn by means of the spur wheel 14' rotates the spur wheel 5' mounted on the bolt 4 at the same speed and in the same direction as the spur wheel 5.

The two wheels 5 and 5' serve as crank discs ,"Q new for imparting a planeta motion to the punch or stamp shde 7. or this purpose, the toothed wheels or discs and 5' are with their centers of rotation located at both sides of the slide 7 in the vertical central (plane of the to and fro strokes of the die sli e 9 and provided with crank pins 6 and 6' which ongage suitable bearings 7" provided in the side cheeks of the stamp slide 7 symmetrically between the above mentioned guide sleeves 7'. The crank discs 5 and 5' operated by a common drive consequen Fly impart a'planetary motion to the stam ide 7, said motion being ided horizontal y by the rods 10 and vertlca ly by the rods 8, when said discs rotate. By this movement of the slide 7 a reciprocatin motion is imparted to the horizontal sli e 9 in the direction of the feed of the web and controlled by rods 10 and sleeves 12. The radius r of the circles described by the central axes of the crank pins 6 6' corresponds with that of the feed rollers 26 for the pa er web, so that the horizontai slide 9 on its orward stroke, and particularly in the middle of the same, will attain the same speed of feed as the paper web at the moment when the crank pins 6, 6' are in their lowest position. Since in this position the upper slide 7 is likewise in its lowest working 30 position, in which its tools enter the dies of the slide 9, the cutting, punching, stamping, embossing or other treatment of the paper web may take place without the feed of the web being interrupted;'-*

Various modifications may be made without departing from the spirit of the invention.

I claim as my invention A device for punching and similarly o treatin a continuousl travelin web, havv ing a is carrying sli e adapts to reciprocate in the direction of travel of said web, a punch carrying slide, means for guiding the punch slide vertically upon sai die slide,

and driving; means with opposite crank pins engaging t e punch carrying slide on either side of same, said driving means com risin two rotary'discs provided with sai cran pins and forming spur wheels which are in direct engagement with two other spur wheels mounted on a common shaft, and means for driving one of said crank discs only.

In testimony whereof I have aflixe my signature.

' s5 PAUL GANGLER. 

